Cps 44 Product Configuration params, templates and other updates

[JaviCerveraIngram]

• Get product templates and configuration params.
• Added missing fields and methods to models.

[codecov-io]

Codecov Report

Merging #68 into master will decrease coverage by 0.04%.
The diff coverage is 90.96%.

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
- Coverage   92.81%   92.76%   -0.05%     
==========================================
  Files          65       67       +2     
  Lines        1739     1866     +127     
==========================================
+ Hits         1614     1731     +117     
- Misses        125      135      +10

Impacted Files	Coverage Δ
connect/config.py	91.89% <ø> (ø)	⬆️
connect/models/usage_file.py	100% <ø> (ø)	⬆️
connect/models/usage_listing.py	100% <ø> (ø)	⬆️
connect/models/template.py	100% <100%> (ø)	⬆️
connect/models/agreement.py	100% <100%> (ø)	⬆️
connect/resources/directory.py	100% <100%> (ø)	⬆️
connect/models/product_configuration_parameter.py	100% <100%> (ø)
connect/resources/template.py	60% <100%> (+2.85%)	⬆️
connect/models/contact_info.py	100% <100%> (ø)	⬆️
connect/resources/usage_automation.py	93.85% <100%> (+0.1%)	⬆️
... and 21 more

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[ht-albert]

I think need reorganizate import

[ht-albert]

I think model import is fast
why do we need import here?

[JaviCerveraIngram]

Every model needs to know its schema for its deserialize method to work. Every schema needs to know its model for its make_object method to work. Thus, one of the files need to import the other locally to avoid a cyclic import.

[ht-albert]

I understood you, all schemas in one file, therefore, such imports, it is okay for me